code: def after_pred(self):
      self.learn.yb = [self.learn.xb[1]]
      self.learn.xb = [self.learn.xb[0]]
  
file_path: icevision/icevision/models/torchvision/fastai_callbacks.py
imports: from icevision.imports import *
  from icevision.engines.fastai import *
label_desc: Use image node_id 3 for calling the RCNNCallback obj's underlying member method code with example usage: obj.after_pred() without return types